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CVE-2023-30589

7.5 · HIGH

The llhttp parser in the http module in Node v20.2.0 does not strictly use the CRLF sequence to delimit HTTP requests.

Published Jul 1, 2023EPSS 3.91%

Overview

CVE-2023-30589 is a high-severity vulnerability. It was published on July 1, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The llhttp parser in the http module in Node v20.2.0 does not strictly use the CRLF sequence to delimit HTTP requests. This can lead to HTTP Request Smuggling (HRS).

The CR character (without LF) is sufficient to delimit HTTP header fields in the llhttp parser. According to RFC7230 section 3, only the CRLF sequence should delimit each header-field. This impacts all Node.js active versions: v16, v18, and, v20

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refhackerone.com/reports/2001873Reflists.fedoraproject.org/archives/list/[email protected]/message/HMEELCREWMRT6NS7HWXLA6XFLLMO36HE/Reflists.fedoraproject.org/archives/list/[email protected]/message/IV326O2X4BE3SINX5FJHMAKVHUAA4ZYF/Reflists.fedoraproject.org/archives/list/[email protected]/message/UEJWL67XR67JAGEL2ZK22NA3BRKNMZNY/Reflists.fedoraproject.org/archives/list/[email protected]/message/VCVG4TQRGTK4LKAZKVEQAUEJM7DUACYE/Reflists.fedoraproject.org/archives/list/[email protected]/message/VEEQIN5242K5NBE2CZ4DYTNA5B4YTYE5/Reflists.fedoraproject.org/archives/list/[email protected]/message/VKFMKD4MJZIKFQJAAJ4VZ2FHIJ764A76/Refsecurity.netapp.com/advisory/ntap-20230803-0009/Refsecurity.netapp.com/advisory/ntap-20240621-0006/Refhackerone.com/reports/2001873

How CyberStrike helps

Frequently asked questions

What is CVE-2023-30589?

CVE-2023-30589 is a high-severity vulnerability. It was published on July 1, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-30589?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-30589?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-30589?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-30589 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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